Tuesday, 26 March 2013

Invisibility Cloak for Microwave Light

Harry Potter-Like Invisibility Cloak Works (in a Lab)

Date: 25 March 2013 Time: 08:35 PM ET
Harry Potter's Invisibility Cloak
Physicists have created a real-life prototype of an invisibility cloak akin to the one featured in the "Harry Potter" books and films.
CREDIT: Warner Brothers

A miniature version of Harry Potter's invisibility cloak now exists, though it works only in microwave light, and not visible light, so far.

Still, it's a nifty trick, and the physicists who've created the new cloak say it's a step closer to realizing the kind of invisibility cloak that could hide a person in broad daylight.

The invention is made of a new kind of material called a metascreen, created from strips of copper tape attached to a flexible polycarbonate film. The copper strips are only 66 micrometers (66 millionths of a meter) thick, while the polycarbonate film is 100 micrometers thick, and the two are combined in a diagonal fishnet pattern.

The creation is a departure from previous attempts to create invisibility cloaks, which have aimed to bend light rays around an object so that they don't scatter, or reflect off it.

More - Link >>> http://www.livescience.com/28171-invisibility-cloak-physics-light.html

Source: LiveScience.com .

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